Questions About a Chlorine Generator

Chlorine is the No. 1 sanitizer of choice for swimming pools, both residential and commercial.

Chlorine generators, also known as salt-chlorine generators, are devices that are plumbed into a pool's circulation system and convert salt into chlorine through the process of electrolysis. They provide an alternative to swimming pool owners who don't want to buy and store chlorine.

Function

When the pool water is pumped through the device, an electric current breaks the water down into oxygen and hydrogen. With the addition of salt, common chlorine (hypoclorous acid) is formed, which is then directed back to the pool.

Quantity

The goal is to reach between 2,500 parts per million (ppm) and 4,000 ppm of salt in the pool water. About 50 lbs. per 2,000 gallons of water usually does the trick. Bathers will not notice the presence of salt in the water. Humans can't taste salt in water until it reaches 5,000 ppm. Ocean saltwater is about 40,000 ppm.

Types

Food grade salt works well with chlorine generators, as will solar salt and water conditioner salt. One form to avoid is rock salt, which contains impurities that can impact your pool's water balance. It's important to stir or brush the salt around the pool to help it dissolve. You can turn on the circulation system to help expedite the process.

Maintenance

Chlorine generators are relatively easy to maintain. The electrolytic cell should be cleaned on a regular basis, usually once a year, depending on how frequently the pool is used and the size of the bather loads. Calcium deposits can be removed from the cell with a solution of water and muriatic acid.

References

• Pool Center: Chlorine Generators